Senora Cruz will use four triangles on the door decoration. How many square centimeters of paper will Senora Cruz used to create the triangles?

Question

asked Oct 19, 2023 80.4k views

1 Answer

Russell McClure · Answer 1 · 2023-10-23T13:45:14+0000

We have the following triangle:

the area of this triangle is the following:

$\begin{gathered} A=(b\cdot h)/(2) \\ \Rightarrow A=(3.5\cdot7)/(2)=(24.5)/(2)=12.25 \\ A=12.25\operatorname{cm}^2 \end{gathered}$

Since Senora Cruz sill use four triangles on the door decoration, we have that the area of the original triangle will be multiplied by 4:

$4\cdot A=4\cdot12.25=49\operatorname{cm}^2$

Thus, senora Cruz will use 49 square centimeters for the triangles